Questions & Answers for: jbl thumping

subwoofer "thumping" w. no audio feed My sub is making a "heartbeat" noise even with no audio feed. It is plugged in to a surge protector (I tried two different strips that are working with other ...

...my stereo system that shut off all my components (turntable, preamplifier, amplifier and the two JBL PB10). The spike was about one second long, or so. I turned everything back on and each ...

my Jbl mono amp cuts out my amp is pushing two jbl 8 inch subs and they just stopped working the 3 blue led's will flash and the speakers make a thump at random intervals and the lights in the car ...

JBL PB10 subwoofer, it makes a loud burp noise when it comes on. I have a JBL PB10 subwoofer, and when it comes on, it makes a loud burp noise, and then it's fine after that. If I connect it to the ...

...jbl subwoofer pb12 makes thumping sound after warming up Hello there..Thats normal only if your sub volume and the pre amp is turned up..Your amp is the cause of the speaker jump..Turn amp volume sub ...

when turned it pops even when not connected to my amp Check inside to make sure there are no capacitors which loook swollen, they look like Blue cans, Faulty and / or leaky capcitors can cause the ...

JBL PB12 Subwoofer has constant machine gun "thumping" connected to system or not. Serial number begins with "AM0035" and was told these amps cannot be repaired.Is this true? What now? PB-10/12 using ...

I had a long term power outage, When the power came back on , the subwoofer immediately started making loud thumping noises. I had to unplug it or turn it off to stop it. It also doesn't seem to be wo

JBL PB12 will have loud thump or pop! Hi, my JBL PB12 will have loud thump or pop after few minutes of audio input from my denon av receiver. Then the green light will turn red.. then off completely ...

JBL PB12 Rev 2 PCB rev C Problem plays fine but get a pop or thump in sound every 4 or 5 minutes while playing, what do you think? The service manual is posted in this but if you dont have the test ...